Carpet-sweeper



2 Sheets-Sheet 1`.

l(No Model.)

H. W. RU TON.4

CARPET SWEBPBR.

Patented Sept. 1.1, .1S-94.

lll/lll www Tm: cams mans ou. vHoTaLnna, wwunmn u c H. W. RU TON.

CARPET SWBB'PER.

(No Model.)

" UNITED :STATE'SPATENTTOFFICE# HIRAM W. Ru' TON, or ,Gosnnm INDIANA, AssIGNoR 11o '.rnnf GosHIzr'I` swnnriin lcoIsIPA-NY, or GRAN-D RAPIDS, MICHIGAN Asrnc,nercn'rrou formngrrt of vlasten.Imrjlt119.5255221,@latta september.` 11, 1394.

Afliimionmarpis.1892. sain-Na 428,2'73.'` (roman.)

Toall whom it may oon/cern; journals'thereof. If`desired,two ofthe wheels Be it known that 'L HIRAMW. RU TON, a l maybefjournaled on the same shaft, said shaft citizenof the United States, residing at Gobeing extended'acro'ss thefcase parallel tothe shen, in the county of Elkhart aud'State of Inbrushholden'a's indicated in Fig.`1- by the* 5 diana,have invented certain new 4and useful dotted lines,`or each wheel may have its sepa- 55 Improvements in CarpetSweepers,of which rate journal,as`shown in Figs. 3,4 and 5.' The the following is a specification. l i journalsfof thewhe'el's are looselyl mounted My invention relates to certain ,improve- Within an aperture D in the end walls of the ments in that class of carpet sweepers wherein case, which' are preferably circular in' form,`-

1o the brush roller is drivenbyfrctionalv coulv and `to these journals are rigidly connected 6o tact with the driving wheels.V In carpet'sweeparms arrangedradially with reference'to said ers of this class,in order to secure the proper apertures orfenlarged bearings-'which arms driving of the brush roller, the friction 'must 'arebacked up' by or seatedagainstl resisting be variable, and to this end the friction wheels springs. In' the'construction shown in Figs. j

15 must be so mounted that .their axesmay l and 2, these arms'areiiat' metal stripsE, 65 change with relation to the axis'of the brush "througliwhichlthe extended journals'of the roller. Y A Y 'driving wheel pass,-while the upper ends of My invention is `i`ntended A to provide Lfor these flat strips lhavefpinslil which project lthis variable adjustment of the drivingwheels 'tliroughelongated apertures e' in the end walls zo with relation to the brush roller; and the prin+ l of the case and` have their ends headed down 7o ciple of my invention consists in mounting overdisksor washers e. These pins serve to the journals or axles of the friction Wheels confine and direct the radial movement ofthe loosely within a bearing andin connecting journals of the driving wheels."Theinner such journals to arms whose movementsare' ends of thecaseof thelsweeper are channeled z 5 governed by suitable controlling springs.V By `or grooved, asrshown at F, andkwithin these 75 means of this arrangement of parts, the jour- 'channels lie the ends of a sprin g rod'G, having nals `of `the wheels are f permitted ai radial one or `more integral coils or turns g therein. movement, and also amovement 'in' the" are iThe'v endsof the rod G rest upon the upper sides of a circle, the length of the arc described-be` Vofthe?pins'l1"ai1d normally tend to force the l 3o i ing defined by the wall which constitutes the driving wheels to the lower limit of their radial 8e bearing for the journals of the friction wheels. movement, i While pressureexerted upon the The form of the spring may be greatly vasweeperwthrouglthehandle will tend to move ried, and in the accompanying drawings I the journals out radially,soas toincrease the have shown several forms, all of which are frictional'!pressureof such driving wheels 3 5 adapted to enforce and control the radial and "upon the-brush roller,"`and` the frictinal ef- 85 circular movement of the journals of the fricfect is further increased by the tendency of tion wheels as above described. the Wheels to swing with their journals in the In said drawings, Figure l is a bottom plan are of a circle, the end of which will-touch the view of a carpet sweeper containing my imcircular walls of the aperture through which 4o provements. Fig. 2 is a transverse section said journals pass. 90

through the brushroller showing the inner In the construction shown in Figs. 3, 4 and side of` one of the end walls ofV the case and 5, the wheels B are mounted each upon sepathe controlling spring in elevation. Figs. 3, rate journals H, which are cranked and have 4 and 5 are similar views of modified forms their cranked ends projected through an aper- 45 of controlling springs. ture in the end wall of the case. 95

In the drawings, A represents the brush In the construction shown in Fig. 3, a reroller which is journaled to rotatein the usual cess or groove J leads from the aperture manner and provided with the friction disks through which the cranked end of the joura, a, nal is passed, and in this groove is located the 5o B,B represent the driving wheels andCthe coiled spring K, one end of the coil being roo M, coiled between its ends about a iixed pin m, has one member bearing uponthe sideof the case and the short arm thereof'resting upon the top of the journal H.

The several modifications above described operate in the same manner as does the pre.- ferred form of the invention shown in Figs. 1 and 2, that is, in each case the movements of the journal arms are controlled or modified by the springs against which they are seated, the normal action of the spring in each case being to force the journals to the lowest limit of their movement and'to exert constantly a yielding pressure upon such journals while the sweeper is in use. permit a limited swinging movement of the wheels, this movement extending through the arc of a circle, the length of which is defined by the diameter of the aperture through which the journals'pass.

It will be apparent from the above description that thisinvention is not limited to the precise form or arrangement of the springs for controlling the movements of the radial arms,.so long as such springs are arranged in such manner as to permit of the described movements.

I claiml. In a carpetl sweeper, the combination with the sweeper case, brush roller and driving wheels, the latter having journals and the case having enlarged apertures through which the journals projectr and in which they may move both vertically and laterally, of arms rigidlyv connected to such journals and proj ected radially therefrom and adapted .to move endwise, and springs bearing on said arms and normally tending to force them toward the brush roller, substantially as described.

2. In a carpet sweeper, the combination Y tended radially from the journals and as -1 Y. with the sweeper case,brush roller and I V-ing wheels, said driving wheels having These springs alsoY ljournals loosely mounted in the end j the case, rigid armsradially connected-to l trol their radial movement, snbstantia described.

vwith the sweeper case, brush roller and i sweeper case, rigid arms radially conn l 4,to such journals and the ends of said ing the projections on the arms, snbstan l vas described.

with the sweeper case, brush roller and ing wheels, the latter having journals and j end walls of the sweepercase having en r apertures in which the journals are mounted and in which they may move I vertically and laterally, crank arms r connected with said journals, said cranks` rod coiled between its ends and fastened j the sweeper case at the coil and havin free ends bearing upon the rigid arms o? journal on opposite sides of the brush substantially as described.

3. In a carpet sweeper, the combi journals loosely mountedin bearings im end walls of the sweepercase andoran j the cranksthereof having pins pro y through elongated Vapertures in the end of the case, groovesin'said end walls b ing theelongated apertures'and aspring j coiled between its ends and having said l adapted to engage the rigid armsof the nals, substantially as described.

4. In a. carpet sweeper, the combi withvthe sweeper case, brush roller'and pairs of driving wheels arranged ono f j sides of the brush and at the endsv of=F sweeper case, said'driving wheels having Vjournals and a spring rod coiled bet v ends and having said ends bearingnpell rigid armsof the journals, whereby tof 5. In a carpet sweeper, the combi ing, wheels, the journals whereof are l l mounted in apertures in the end walls 0f" projected through elongated apertures il ends of the sweeper case and springs e j HIRAM W. RU TON Witnesses:

L. M. AYERS, S. C. BREIDING. 

